Chapter 10: DXi4701 Utilities
Space Reclamation
Quantum DXi4701 User’s Guide
371
Space Reclamation
The
Space Reclamation
page allows you to manage space reclamation
activity on the DXi4701. You can start or stop space reclamation. You
can also monitor the progress of space reclamation activity.
During space reclamation, the DXi4701 searches the blockpool for tags
that are no longer referenced and then deletes the unneeded tags to
free up space.
Caution:
For correct system operation, space reclamation
must
be
run at regular intervals (at least once a week). Quantum
recommends creating a schedule to automatically run
page 301). Because space reclamation can affect system
performance, avoid running space reclamation during
known backup periods.
The space reclamation process can include up to four stages (see
•
New or Normal Mode
- To increase performance, when space
reclamation is initiated on the
Space Reclamation
page or as a
scheduled event, only Stage 2 (Calculating Deletion Candidates) and
Stage 3 (Deleting New Candidates) are run.
Note:
Stage 1 and 4 are not required in Normal mode because
the DXi can automatically compact reclaimable space as
needed and use it to store new deduplicated data.
•
Low Space or Legacy Mode
- When disk capacity is low, space
reclamation is automatically started to free up disk space. In this
case, all four stages of space reclamation are run.
To access the
Space Reclamation
page, click the
Utilities
menu, and
then click the
Space Reclamation
tab (see
).
Содержание DXi4701
Страница 1: ...User s Guide Quantum DXi4701 with DXi 2 3 4 Software 6 68106 01 Rev C...
Страница 20: ...Tables xx Quantum DXi4701 User s Guide Table 17 Ethernet Network Problems 406 Table 18 Replication Problems 407...
Страница 70: ...Chapter 2 DXi4701 Basic Operations Locating DXi4701 Serial Numbers 44 Quantum DXi4701 User s Guide...
Страница 126: ...Chapter 4 DXi4701 Configuration Wizards Support Wizard 100 Quantum DXi4701 User s Guide...
Страница 138: ...Chapter 5 DXi4701 Home Page Current Activity Overview 112 Quantum DXi4701 User s Guide...
Страница 384: ...Chapter 9 DXi4701 Configuration Contacts 358 Quantum DXi4701 User s Guide...
Страница 418: ...Chapter 10 DXi4701 Utilities Reboot Shutdown 392 Quantum DXi4701 User s Guide...
Страница 436: ...Appendix B Troubleshooting Common Problems and Solutions 410 Quantum DXi4701 User s Guide...
Страница 440: ...Glossary 414 Quantum DXi4701 User s Guide...